au.net.aba.crypto.provider
Class RC5KeyGenerator
java.lang.Object
|
+--javax.crypto.KeyGeneratorSpi
|
+--au.net.aba.crypto.provider.RC5KeyGenerator
- public class RC5KeyGenerator
- extends KeyGeneratorSpi
Implements a Key Generator for Secret keys to use with the RC5 cipher.
This class was modeled after the RC4KeyGenerator
There is no AlgorithmParameterSpec class defined for RC4 so this
generator can only be initialised using the keysize,random
initialisation.
The default keysize is 64 bits, and may be any multiple of 8 less
than (or equal to) 256.
|
Method Summary |
protected SecretKey |
engineGenerateKey()
Generates a SecretKey
|
protected void |
engineInit(java.security.spec.AlgorithmParameterSpec keyParams,
java.security.SecureRandom random)
Initializes the key generator with the specified parameter
set and a user-provided source of randomness. |
protected void |
engineInit(int keySize,
java.security.SecureRandom random)
Initializes the key generator with the number of bits to use
and a user-provided source of randomness. |
protected void |
engineInit(java.security.SecureRandom random)
Initializes the key generator with a user-provided source of
randomness. |
| Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
RC5KeyGenerator
public RC5KeyGenerator()
engineInit
protected void engineInit(java.security.spec.AlgorithmParameterSpec keyParams,
java.security.SecureRandom random)
throws java.security.InvalidAlgorithmParameterException
- Initializes the key generator with the specified parameter
set and a user-provided source of randomness.
There are no parameters supported for RC5. Calling this method
will result in an InvalidAlgorithmParameterException
being thrown.
- Overrides:
- engineInit in class KeyGeneratorSpi
- Parameters:
keyParams - key generation parametersrandom - source for invoking randomness
engineInit
protected void engineInit(java.security.SecureRandom random)
- Initializes the key generator with a user-provided source of
randomness.
- Overrides:
- engineInit in class KeyGeneratorSpi
- Parameters:
random - source for invoking randomness
engineInit
protected void engineInit(int keySize,
java.security.SecureRandom random)
- Initializes the key generator with the number of bits to use
and a user-provided source of randomness.
- Overrides:
- engineInit in class KeyGeneratorSpi
- Parameters:
keyParams - key generation parametersrandom - source for invoking randomness
engineGenerateKey
protected SecretKey engineGenerateKey()
- Generates a SecretKey
- Overrides:
- engineGenerateKey in class KeyGeneratorSpi
- Returns:
- the new secret key